/* ============ ValfioLab — Tema moderno ============ */
:root{
  --bg:#0b1220;
  --bg-2:#0f172a;
  --surface:#111a2e;
  --surface-2:#172241;
  --border:#1f2a44;
  --text:#e6edf7;
  --muted:#9aa7c2;
  --primary:#38bdf8;
  --primary-2:#6366f1;
  --accent:#22d3ee;
  --success:#22c55e;
  --danger:#ef4444;
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.35);
  --gradient:linear-gradient(135deg,#38bdf8 0%,#6366f1 60%,#a855f7 100%);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:.2s}
a:hover{color:var(--accent)}
img{max-width:100%;display:block}
.container{width:min(1180px,92%);margin:0 auto}

/* HEADER */
.site-header{
  position:sticky;top:0;z-index:100;
  backdrop-filter:blur(14px);
  background:rgba(11,18,32,.78);
  border-bottom:1px solid var(--border);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;font-size:1.25rem}
.brand-mark{
  width:38px;height:38px;border-radius:10px;
  background:var(--gradient);
  display:grid;place-items:center;color:#fff;font-weight:800;
  box-shadow:0 6px 20px rgba(99,102,241,.4);
}
.brand-logo{height:42px;width:auto;border-radius:8px}
.main-nav ul{list-style:none;display:flex;gap:6px;margin:0;padding:0}
.main-nav a{
  display:block;padding:10px 16px;border-radius:8px;
  color:var(--text);font-weight:500;
}
.main-nav a:hover{background:var(--surface-2);color:#fff}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{width:26px;height:2px;background:#fff;display:block;transition:.3s}

/* HERO */
.hero{
  position:relative;overflow:hidden;
  padding:110px 0 90px;
  background:
    radial-gradient(ellipse at 20% 0%,rgba(99,102,241,.25),transparent 50%),
    radial-gradient(ellipse at 80% 30%,rgba(56,189,248,.2),transparent 50%),
    var(--bg);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:50px 50px;
  mask-image:radial-gradient(ellipse at center,black 30%,transparent 70%);
}
.hero-content{position:relative;text-align:center;max-width:880px;margin:auto}
.eyebrow{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.3);
  color:var(--accent);font-size:.85rem;letter-spacing:.5px;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.6rem);line-height:1.15;margin:0 0 20px;
  background:linear-gradient(180deg,#fff,#a5b4fc);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{font-size:1.2rem;color:var(--muted);margin:0 0 36px}
.hero-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* BUTTONS */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:10px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.25s;
  font-size:1rem;text-decoration:none;
}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 10px 25px rgba(99,102,241,.35)}
.btn-primary:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:transparent;color:#fff;border-color:var(--border)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-block{width:100%;justify-content:center}

/* SECTIONS */
section{padding:90px 0}
.section-head{text-align:center;max-width:720px;margin:0 auto 60px}
.section-head h2{font-size:clamp(1.8rem,3.5vw,2.6rem);margin:0 0 14px}
.section-head p{color:var(--muted);font-size:1.1rem;margin:0}

/* SERVICES GRID */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--border);border-radius:var(--radius);
  padding:32px 26px;transition:.3s;position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:var(--gradient);transform:scaleX(0);transform-origin:left;transition:.4s;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(56,189,248,.4)}
.card:hover::before{transform:scaleX(1)}
.card .icon{
  font-size:2.2rem;width:60px;height:60px;border-radius:14px;
  display:grid;place-items:center;margin-bottom:18px;
  background:rgba(56,189,248,.1);border:1px solid rgba(56,189,248,.25);
}
.card h3{margin:0 0 10px;font-size:1.25rem}
.card p{color:var(--muted);margin:0}

/* FEATURE STRIP */
.features{
  background:var(--bg-2);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.feature .num{
  font-size:2.4rem;font-weight:800;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.feature .lbl{color:var(--muted);font-size:.95rem;margin-top:4px}

/* CTA */
.cta-box{
  background:var(--gradient);border-radius:24px;padding:60px;text-align:center;color:#fff;
  box-shadow:0 30px 60px rgba(99,102,241,.35);
}
.cta-box h2{margin:0 0 12px;font-size:2rem;color:#fff}
.cta-box p{margin:0 0 24px;opacity:.92}
.cta-box .btn-ghost{background:rgba(255,255,255,.15);border-color:rgba(255,255,255,.4);color:#fff}
.cta-box .btn-ghost:hover{background:rgba(255,255,255,.25);color:#fff;border-color:#fff}

/* SKIP LINK (accessibility + SEO) */
.skip-link{
  position:absolute;top:-100px;left:0;background:var(--primary);color:#0f172a;
  padding:10px 18px;font-weight:600;z-index:9999;border-radius:0 0 8px 0;transition:.2s;
}
.skip-link:focus{top:0}

/* BREADCRUMB */
.breadcrumb{
  font-size:.9rem;margin-bottom:14px;color:var(--muted);
}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{color:var(--accent)}

/* PAGE HERO */
.page-hero{
  padding:80px 0 50px;text-align:center;
  background:radial-gradient(ellipse at top,rgba(99,102,241,.2),transparent 60%),var(--bg);
  border-bottom:1px solid var(--border);
}
.page-hero h1{font-size:clamp(2rem,4vw,3rem);margin:0 0 10px}
.page-hero p{color:var(--muted);font-size:1.1rem;margin:0}

/* CONTENT (HTML rich text) */
.rich-content{font-size:1.05rem}
.rich-content h2,.rich-content h3{margin-top:1.6em}
.rich-content ul{padding-left:1.4em}
.rich-content li{margin:.4em 0}
.rich-content p{color:#cbd5e1}
.rich-content strong{color:#fff}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:40px;align-items:start}
.contact-info .info-row{display:flex;gap:14px;align-items:flex-start;margin-bottom:18px}
.contact-info .info-row .ic{
  width:42px;height:42px;border-radius:10px;display:grid;place-items:center;
  background:rgba(56,189,248,.12);border:1px solid rgba(56,189,248,.25);font-size:1.2rem;flex-shrink:0;
}
.contact-info h4{margin:0 0 4px}
.contact-info p{margin:0;color:var(--muted)}
.form-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:32px;
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:18px}
.form-group label{display:block;margin-bottom:8px;font-weight:500;font-size:.95rem;color:#cbd5e1}
.form-control{
  width:100%;padding:12px 14px;border-radius:10px;
  background:var(--bg-2);border:1px solid var(--border);color:var(--text);
  font-family:inherit;font-size:1rem;transition:.2s;
}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(56,189,248,.15)}
textarea.form-control{resize:vertical;min-height:130px}

/* FLASH */
.flash{padding:14px 18px;border-radius:10px;margin:20px 0;border:1px solid}
.flash-success{background:rgba(34,197,94,.12);border-color:rgba(34,197,94,.4);color:#86efac}
.flash-error{background:rgba(239,68,68,.12);border-color:rgba(239,68,68,.4);color:#fca5a5}
.flash-info{background:rgba(56,189,248,.12);border-color:rgba(56,189,248,.4);color:#7dd3fc}

/* COMPARE TABLE */
.compare-table{width:100%;border-collapse:collapse;font-size:.95rem}
.compare-table th,.compare-table td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border)}
.compare-table thead th{font-weight:700;font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}
.compare-table th.old{color:#f87171;background:rgba(239,68,68,.06)}
.compare-table th.new{color:#4ade80;background:rgba(34,197,94,.06)}
.compare-table td.old{color:#fca5a5}
.compare-table td.new{color:#86efac;font-weight:500}
.compare-table tbody tr:hover td{background:var(--bg-2)}

/* FOOTER */
.site-footer{background:#070b16;border-top:1px solid var(--border);padding:60px 0 20px;margin-top:60px}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px}
.footer-grid h4{margin:0 0 14px;color:#fff}
.footer-grid p{color:var(--muted);margin:6px 0}
.socials{display:flex;gap:14px;flex-wrap:wrap}
.socials a{padding:8px 14px;background:var(--surface);border-radius:8px;color:var(--muted);font-size:.9rem}
.socials a:hover{background:var(--surface-2);color:#fff}
.admin-link{font-size:.85rem;color:var(--muted)}
.footer-bottom{text-align:center;padding-top:30px;margin-top:30px;border-top:1px solid var(--border);color:var(--muted)}

/* ============ ADMIN ============ */
.admin-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.admin-sidebar{
  background:#070b16;border-right:1px solid var(--border);padding:24px 0;
  position:sticky;top:0;height:100vh;overflow-y:auto;
}
.admin-sidebar .brand{padding:0 24px 24px;border-bottom:1px solid var(--border);margin-bottom:14px}
.admin-sidebar nav a{
  display:flex;align-items:center;gap:10px;padding:12px 24px;
  color:var(--muted);font-weight:500;border-left:3px solid transparent;
}
.admin-sidebar nav a:hover{background:var(--surface);color:#fff}
.admin-sidebar nav a.active{background:var(--surface);color:#fff;border-left-color:var(--primary)}
.admin-main{padding:30px 40px;background:var(--bg-2);min-height:100vh}
.admin-topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px;flex-wrap:wrap;gap:16px}
.admin-topbar h1{margin:0;font-size:1.6rem}
.admin-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:28px;margin-bottom:24px;
}
.admin-card h2{margin:0 0 18px;font-size:1.2rem;padding-bottom:12px;border-bottom:1px solid var(--border)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:30px}
.stat-card{
  background:linear-gradient(180deg,var(--surface),var(--surface-2));
  border:1px solid var(--border);border-radius:var(--radius);padding:22px;
}
.stat-card .v{font-size:2rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;color:transparent}
.stat-card .l{color:var(--muted);font-size:.9rem}
table.admin-table{width:100%;border-collapse:collapse}
table.admin-table th,table.admin-table td{padding:12px;text-align:left;border-bottom:1px solid var(--border)}
table.admin-table th{color:var(--muted);font-weight:600;font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}
table.admin-table tr:hover td{background:var(--bg-2)}
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.78rem;font-weight:600}
.badge-on{background:rgba(34,197,94,.18);color:#86efac}
.badge-off{background:rgba(239,68,68,.18);color:#fca5a5}
.badge-new{background:rgba(56,189,248,.2);color:#7dd3fc}
.row-actions{display:flex;gap:8px}
.btn-sm{padding:6px 12px;font-size:.85rem}
.btn-danger{background:var(--danger);color:#fff;border:0}
.btn-danger:hover{background:#dc2626;color:#fff}
.btn-secondary{background:var(--surface-2);color:#fff;border:1px solid var(--border)}
.btn-secondary:hover{border-color:var(--primary)}

/* LOGIN */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px;
  background:radial-gradient(ellipse at 50% 0%,rgba(99,102,241,.25),transparent 60%),var(--bg)}
.login-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:40px;max-width:420px;width:100%;box-shadow:var(--shadow)}
.login-card .brand{justify-content:center;margin-bottom:24px;font-size:1.4rem}

/* RESPONSIVE */
@media (max-width:900px){
  .grid-3,.grid-2,.features-grid,.footer-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    background:var(--bg-2);border-bottom:1px solid var(--border);
    max-height:0;overflow:hidden;transition:max-height .35s ease;
  }
  .main-nav.open{max-height:500px}
  .main-nav ul{flex-direction:column;padding:14px}
  .admin-shell{grid-template-columns:1fr}
  .admin-sidebar{position:static;height:auto}
  .stats{grid-template-columns:repeat(2,1fr)}
  .admin-main{padding:20px}
}
@media (max-width:560px){
  .stats{grid-template-columns:1fr}
  .cta-box{padding:40px 24px}
}